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Anton Afanasyeu
2026-06-19 22:41:27 +02:00
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# Entitlements obfuscation (C)
Shared by `libandroidcast_entitlements.so` and the archived spike under `reference-design/obfuscate_entitlements/`.
- `encode` / `decode` — 40-bit payload + 24-bit verification tag, keyed by per-account `uint64_t` **key** (not wall clock).
- `write_to` / `read_from` — file layout: 32-bit dummy header, N×uint64_t payloads, 32-bit dummy tail.
Reference demo: `tmp/obfuscate_test/` (standalone; not wired into the main app).